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タイトル: The life span of theront stages of Cryptocaryon irritans in different media, temperature and salinity
著者: Chu, Kua Beng
Seng, Leong Tak
Yong, Wong See
Thye, Chuah Toh
Veloo, Palanisamy
キーワード: Cryptocaryon irritans
theront
fish protozoan
temperature
media
salinity
発行日: Oct-2001
出版者: National Research Center for Protozoan Diseases
抄録: Study on the in vitro survival of the theront stages of Cryptocaryon irritans in different nutrient media, temperature and salinity showed that these three factors could influence then- life span. Theront of C. irritans had a longer mean life span in HBSS (62.40±23.02 hrs) and BBSS (46.64 ± 13.29 hrs) compared to control seawater medium (29.23 ± 6.81 hrs). The shortest mean life span was obtained from the MEME non-essential ammo acid medium ranging from 0.45 to 0.83 hrs. Out of 9 media, only 2 media (HBSS and BBSS) managed to prolong the life span of theront compared to the other 7 media (MEME, MEME non-essential amino acid, L-15 with 5% serum, L-15 with 10% serum, tissue homogenate (gills, scale & mucus, fin and muscle). Tukey HSD analysis showed that there was no significant difference between the total mean life span in HBSS and BBSS. Theront also could sustain their mean life span longer in 30 oC (11.38 ± 1.01 hrs) followed by 25 oC (10.66 ± 1.48 hrs), 20 oC (4.34 ± 2.30 hrs), 35 oC (1.59 ± 0.08 hrs) and 40 oC (0.23 ± 0.03 hrs). As for salinity, the longest mean life span of theront were obtained in 20 ppt (33.60 ± 0.50 hrs) followed by 25 ppt (32.85 ± 0.88 hrs), 35 ppt (23.76 ± 0.90 hrs) and 30 ppt (21. 18 ± 2.42 hrs) and 40 ppt (22.07 ± 4.96 hrs) respectively.
URI: http://ir.obihiro.ac.jp/dspace/handle/10322/139
ISSN: 0917-4427
出現コレクション:05001学術雑誌論文

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